Problem with Grader in Course 5 Week 1 Building your RNN step by step

Course Q&A Deep Learning Specialization Sequence Models
1

Dear all,

I am getting this error message from the grader when submitting the Notebook

Cell #7. Can’t compile the student’s code. Error: TypeError("‘NoneType’ object is not subscriptable"

May you figure out what it has to do with?

Cheers.
Mario

2

Standard first things to try:

  • Restart the kernel
  • Run all of the cells in the notebook
  • Inspect all of the cell outputs looking for any error messages.
3
  1. Kernel restarted
  2. Run Cells up to cell 7
  3. Error messages got:

Cell #UNQ_C3. Can’t compile the student’s code. Error: SyntaxError(‘invalid syntax’, (’/tmp/student_solution_cells/cell_6.py’, 62, 10, ’ ft = \n’))

Cell #7. Can’t compile the student’s code. Error: TypeError("‘NoneType’ object is not subscriptable")

Cell #5. Can’t compile the student’s code. Error: TypeError(‘cannot unpack non-iterable NoneType object’)

I have got different error messages every time I submit the assignment

4

Now, after all the evening KO the grader works. I cannot understand.

5

Well, I am suffering the same issue on Exercise 2 with the Dinosaurs names.
It seems the grader does not work until you submit the 75% of the answers to the grader.

Lesson learnt
BR

6

Dear all,

I am getting this error message in the Notebook Cell #70. Can’t compile the student’s code. Error: TypeError(“cannot unpack non-iterable NoneType object”)

May you figure out what it has to do with?